Scale mechanism for automatic feeders



Aug. 13,1929. REED ETA 1,724,414

SCALE MECHANISM FOR AUTOMATIC FEEDERS Filed Nov. l8, 1927 2 Sheets-Sheet 1 7 HQ] 5 a h a a b h h h b J 7f Y I x \N V'ENTORS: James RtcJ PM A- o o BY; H 1 1' o R Nirs.

Aug. 13, 1929. J. REED ETAL SCALE IECHANISI FOR AUTQIATIC FEEDERS Filed NOV. 18, 1927 2 Sheets-Sheet 2 l hula I! auvaw-roKs;

@W 2, mm M m ATT o I? rnfys i This invention has reference toiimprove ments in andconnected with'automaticfeeding apparatus for feedingvfibrous materials:

' for controlling thesamc.

Patented Aug. l3, v i it TB A cums REED FEAIKZBOOTH, 0110mm, ENGLAND; lissrenons or ONE-m nim: mo rnarrnno'rnnns AND cournmzrnrrrnn, or ornmm, ENGLAND.

i wuncnmrsnroaaurounrrc rnnnrms] m m filed November 18, 1027, seri uid. 234,148; and mor ar mam iliovember 25, 1926. a

* to carding engines or a other preparing machines and concerns in particular the scale mechanism of such apparatus and themeans ,Our improvements Wlll be morereadily understood by a consideration of United States patent specification No. 1,476,476, which relates to automaticfeeding machines.

In this class of ap aratus an I inclined spiked lattice is used which lifts the material from a hopper and delivers the; fibrevvto a scale or weighing 1 machine which empties onto a horizontal lattice,cree er or the like which conveys the weighed fi re 'to the card or the like. a

Our object is simplify the scale mecha nism and its actuating parts and to render the operations more definite or certain,

As is desirable for yarns produced on the condenser system the arrangement will ensure either a definite weight deposit, ornone,

in the latter case making a break onthe feed lattice which, if unseen by the attendant, is made obvious at a subsequent stage; i or if i used for worsted or'cotton preparation treatments the scale will; deposit at definite in-- tervals irrespective of the weight and without alteration ofthemechanism, it being only necessary to restrict the movement of a Figs. 3 and 4 are detached simple part, as: later explained,

The drawing illustrates the invention Fig. 1 being asectional side elevation showing the improved scale motion mechanism.

Fig. 2 is a plan ofFigpl; L a i detail'views. Figs, 5 and 6 are detail views showing in front elevation and sectional side viewrespectively the disposition ofthemechanism vwhich permitsan opening of the scale pan only when a definite 'weightis deliveredginto the scalepanuso that it overbalances.

Figs. 7 and 8 are detail views showingin;

front elevation andsectional side view re- 'spectively the dis osition of the mechanism ,for'insurin a de 'teopeningofthe scale Pall ea-c Cycle; ()f oper ti J r We utilize a scale pan consisting of pieces a and; two'curved longitudinal sheet metal len hsa', a which are hinged so as r to be pen ent, and whose lower beadededges e m b g h r fl nsa egitnd n vid v insacting on the line when the pan is'olosed. The sheet metal lengths of, at are preferably hinged upon nism end havejbell-crank levers a a ap plied, so that when the lengths of the scale projecting pine in aslot a forming'theinspindles or axles at a a which at the mecha:

panflareclosed the upper arms ofthe bellcrank levers lie side by side one to another, a

terconnecting meansj The pendent arms of the bell-crank levers 011 a are coupled by a coiled spring a If the projecting pin atbe pressed-on, thejlongitudlnal sides a, a" of thepan will open on part angularly and the contents will fall out, whilst,*on pressure ceasing," a closure is efiecteddueto the spring a? The manner'of opening the scale pan by projecting; pm a will be later described.

n The scale pan is hung by knife edges 1) i 7a;

lever arms and these lever arms are in turn hun on knife edges 6? 1n suitable auxiliary brac ets b and, adjustable balance weights b, b? are used, thesebeing setaccording to the weight the scale pan is to overbalance at.

Upon a mainsupporting bracket 0 we pivot at c a cranked lever which hasan upwardly directed arm 0 with shaped top ,0? onto which drops a projection b from the forward end of the balance lever bwhen the scale pair overbalances [due to having re lever has: also a horizontal arm with inceived its weight of fibre. The said cranked cline '0 and bored extremity of from which slidably guided in the frame of the machine, which detent, when in itslowermost position, engages a shoulder formed on a slidable spring-pressed rod or cross-bar all controlling a clutch, or other equivalent mechanism gov: Herning'the driving ofthe spiked lattice supplying the fibreto the scale mechanism, andthus holds therodmin its clutch-operating position.

There is provided, conveniently in connection with the auxiliary bracket b carryg ing the counter-balanced scale pan lever, and on the mechanism side, a shaped bellcranklever fulcrumed at e which lever is likewise counter-'balancedand such lever has abent arme' directed over the before described projeoting pin a whilst its pendent arm 6? has a roller e in the rear and a roller I is hung a pendent adetent member-or latch 0 e at the front. The incline c on the horirearroller e l vwhereby, onactuation of the zontal armc of the crank lever engages the r may be preferred worsted on cotton preparation systems where subsequent op portunities for doubling occur; i i

All movements of the mechanism it will be appreciated are definitely controlled, We declare that what we claim is:

i 1. A device of the character described,

comprising a balanced scale pan mechanism,

a fulcrumed lever disposedin juxtaposition to said mechanism, and adaptedvto be aoted on by the balanced scale pan mechanlsm, a

shaped scale pan operating lever fulcrumed in position to act on the scale pan mechanismto open the same, an extension arm from said shaped lever, a normally inoperative roller projecting from said arm, means for swinging said arm thereby'to carry the roller into operativezposition, a movable stop adapted to preventthe return of said arm and thereby retain the roller in operative poi sition, and a cam adapted to engagesaid rolf ler thereby to operate the shaped lever, the

organization being such that; the scale pan can beopened either under a predetermined load or once for eachcycle of operation.

2. A device of the character described,

comprising in combination a balanced suspended scale pan, a fulcrumed lever mechas nism having a scale pan operating arm and a second arm, 'rollersprojecting from said second arm, anadjustable device for limiting the movement of said second arm, a rulcrumed lever operableon the actuationof said scale pan to engage one of saidrollers and set the lever in operative position, and a cam device adapted to contact with the other roller thereby to operatesaid lever, the

organization being such thatsthe' scale pan may be set for delivery? at a definite weight 7 or once for each complete cycle of operation.

3. A device ofthe character described,

comprising in'combination a balanced scale,

pan, a fulcrumed lever adapted for operation by the fall of the scalepan, a fulcrumed scale pan operating lever, a pendent arm earned by said scale panr operating lever,

rollers projecting" from saidpendent arm, adjustable means disposed in thepath of said arm-for limiting the movement of said scale-pan operating lever, and a cam adapted] to contact with one of said rollers thereby to operate said lever, the organization being I such that the scale pan may be opened either complete to load.

under a predetermined load or once for each 4- A device of the character described,

comprising a pair of separable members adapted when in contact with each other to form a scale pan, means operative normally to retain said members in pan-formingrelation and to permit automatic separation thereof under a predetermined load, means operative on partialseparation of said members tolcomplete the separation thereof there by; to deliver'the load from said pan, means for re'ndering said separating means inoperative on the delivery of said load thereby to permit return of the members to normal position under the action of said retaining means, and means for sett ng said separatlng cycle ofoperation without regard meansv for operation at predetermined intervals withoutregard to the load in said'scale pan.

5., A device of the character described,

" comprising apivotally mounted counter-balancing lever,-a pair ofseparable members pivoted for swinging movement toward each other to form a scale pan, said members being pivotally' connected to said lever thereby to rock the same when the members are moved, resilient means for normally retain-V ing said members in pan-forming relation and adapted to permit them to swing apart under a predetermined load, a second pivoted lever disposed adjacent to said members, means carried by said first lever for engaging said second lever when said separable members are moved away from each other, rotatable means adapted to exert pressure on said engaging means thereby to swing said'second lever on its pivot, a third lever pivotally mounted adjacent to said separable members and having means for operating said members into separated position, said lever being normally "inoperative, cooperatng means carried by saids'econd and third ,levers for swinging the latter on its pivot to carry the same into operative position, and 1 

